Pigment Yellow 2RN Pigment Yellow 55 Cas 6358-37-8 Plastic Pigment Color

This Pigment Yellow 2RN (P.Y.55, CAS 6358-37-8) is a low-grade diarylide pigment exhibiting critical thermal instability, making it prone to severe darkening and decomposition during high-temperature plastic processing (>200°C). It suffers from excessive migration (bleeding) in flexible plastics like PVC and offers extremely poor lightfastness, resulting in rapid fading under UV exposure. These severe limitations make it entirely unsuitable for any application requiring durability, safety, or thermal consistency.